Stationery feeding device with retractable pins



' June 4, 1946.

c. L. `WINTER STATIONERY. FEEDING DEVICE WITH RETRACTABLE PINS svv sheets-sheet 1 Filed DSO. l1, 1943 7 e k f Ti i l ml l. y o M 7 v o o e Z rlfi e o lk o lo- 7 f j@ @mk o o l 6 Milli--- -il 1 1 I- I--- LIMA MQ M Qm |..u n m 0\|/ f o m n o E. NN) O m m Q J, nu J@ n --.mvg imw awry 5. JTQM -wwn or |/Q% N\.%\ l Mlllllllhl NN l.

June 4, 1946. c. L. WINTER l 2,401,596

STATIONERY FEEDING DEVICE WITH RETRACTABLE PINS Filed Deo. 11, 1943 3 Sheets-Sheet 2 June 4, 1946. c. L. WINTER 2,401,596

' STATIONERY FEEDING DEVICE WITH RETRACTABLE PINS Filed Dec. 1l, 1945 3 Sheets-Sheet 3 Patented June 4, 1946 UNITED STATES PATENT OFFICE `STATIONERY FEEDING DEVICE WITH aE'mAc'rALE rms Charles L. Winter, Chicago, Ill., assignor to United Autographic Register Co., a corporation of Illinoia Application December 11, 1943, serial No. 513,879

(ci. iev-iss) 2 journalled in bearings I8 and is driven in timed relation to the platen roll by meansof a train of gears indicated at I9.

be held in contact with the feeding wheel and the ordinary paper guides are not needed.

Another object of the invention is to provide a simple and compact unit which may he adiusted to accommodate various widths of stationery and the feed wheels may be rotationally adjusted to provide proper line spacing around a platenpand also be properly aligned with each other.

Another object of the invention is to provide an adjustable cam-member so that the stationery may be released by the retracted pins at the `de sired point in the cycle.

The invention is illustrated in a preferred embodiment in the accompanying drawings, in

whichl Figure 1 is a plan view of the improved device .with the associated rotary platen indicated by dotted lines; Figure 2, a side elevational view of the device shown in Figure 1; Figuref, a vertical sectional view of the feed wheel, taken as indicated-at line 3-3 of Figure 9; Figure 4, an end elevational view of the feed Wheel with the cam- A pair of feed wheels are secured to hubs 2l by screws 22 which extend through slots 23 in the members 2i. The hub member, in turn, is splined to the driven shaft l1. The slots 23 enable the wheels to be adjusted rotationally with respect to each other and with respect t0 the platen I2. As shown in Figure 4, each of the feed Wheels is provided with a concentric series of regularly spaced pivots 24 about which the feed units 25 may oscillate. Each feed unit, as best' shown in Figure 10, as an arm 26 provided at one end with a bearing portion 21 and at the other end with a laterally extending cam-finger 28.` The arm 26 is also provided-near the finger 28 with a straight outwardly extending pointed feed pin 29 which is adapted in extended position to engage holes in' marginally punched stationery 30 and drawy it around the platen of the machine.

A cam-member 3| is adjustablysecured to a I bracket 32 by means of screws 33-which extend through arcuate slots 34, as shown in Figure 11.

The carrier 32 is laterally adjustable on the cross member removed; Figure 5, an end elevational view of the cam-memben'Figure 6, an elevationalv view of the driving hub of the feed Wheel; Figure 7, a vertical sectional view, taken -as indicated at line 1-1 of Figure 2; Figure 8, a fragmentary sectional view of'the frame, taken as indicated at line 8-8 of Figure 1; Figure 9, a fragmentary sectional view of one ofthe feed wheels and operating cam; Figure 10, an enlarged perspectiveviewof one ofthe feed units showing the pin, cam-fingers, and bearing; and Figure 11, a fragmentary sectional elevational view, taken as indicated at line II--II of Figure 1.

The apparatus is embodied in an attachment which may be fitted onto a typewriter machine having a power driven platen roll I2 as found in a tabulating machine, or the like. The attachment has an end plate l3 which is connected to a companion end plate Il by an upper cross rod I5 and a. lowercross rod I3. Across shaft" is wardly in the direction of movement. 'I'his inlloar I5 and is held in position by a thumb screw 35. The cam bracket 32 extends downwardly and has a lateraliyextending flange 36 which serves as a support for the stationery advancing to the platen beneath the feeding mechanism. If desired, an additional guide member 31 may be secured to the lower cross rod I6 by means of a screw 38, as shown in Figure '7.

.As shown in Figures 3 and 5, the cam-member 3l has a cam groove 39 which receives each of the cam-fingers 28 on the feeding units 25, and as the ywheel 20 is rotated, one or two of the` pins 29, at one point in the cycle, will be retracted from extended position. It will be noted that in extended position each of. the straight pins is inclined forclination holds the paper in engagement with the wheel 20 until the pin is retracted by the cam.. However, in some cases the perforations 'in the stationery may be so much larger than the diameter of the pins 23 that additional guides may v be desirable.

As shown in Figures 1 and 7, a curved guide member 40 may be plvotally connected to each bracket 32' by means of a screw 4I. Also,'a.guide rod 42 ma be hinged to the cross rod I5 by means of/ arms 43. The rod may be turned up out of the way and guides III swung laterally" while the stationery is beingloaded into the machine. v

` platen of the machine i2 will automatically drive-the shaft Il and the wheels 20.' Preferably the peripheral speedfof the pin mechanism is made slightly faster than the peripheral speed of the platen, by the gearing II, so that the paper will be fairly taut around the platen. The mechanism is of light weight and may be operated at high speed.

The foregoing detailed description has been given for clearness of understanding only and no unnecessary limitations should be understood therefrom for some modiilcations will be obvious to'those skilled in the art.

I claim:

In a typewriting machine having a driven rotary platen: a frame provided withcross rods mounted on said machine and having a drive shaft geared to said platen: a hub splined to Y l 4 Y said shaft a feed -wheel rotationally adjustable onsaid hub and having a series of regularly spaced feed umts pivotally mounted on said wheel, each of said units having an arm'extend ing from the pivot andprovided near its free end with a laterally extending cam finger and a straight shanked feed pin disposed at an angle to said arm so as to project outwardly and forwardly from the wheel when extended: and a cam support member slidably mounted on a cross rod of the frame; and a cam member adjacent to said wheel and rotationally adjustable on said support member, said cam member having a groove to'receive the cam ngers of the units and oscillate the pins into feeding engagement with the stationery during each rotation of the wheel.

' CHARLES L. WIN'IER.. 

